Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 2057 |
Minas Centrais integrated operation includes Brucutu and Morro Agudo mines, Apolo project with two major beneficiation plants and one secondary plant. |
Source:
p. 41
98.6% Minas Centrais is owned and operated by Vale S.A.. China Baowu Steel Group Corporation Limited indirectly holds 1.4% of Minas Centrais through a 50% ownership of the Morro Agudo mine.
Contractors
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Summary:
The Minas Centrais Complex includes the northern portion of the Quadrilatero Ferrifero (Iron Quadrangle), due east from the city of Belo Horizonte. It includes three NE-SW trending branches of the Formacion Ferrifera outcroppings, with a projected total extension of approximately 115 kilometers. The main branch, over 60 kilometers long, holds the deposits of Brucutu in the northern portion, Gongo Soco in the central part, and the Maquine project in the southern extension. The Bau deposit is located in the middle branch of the Formacion Ferrifera outcroppings, which represents a folded extension of the main branch. The Agua Limpa f Cururu mine is enclosed by an independent branch of the Formacion Ferrifera outcroppings, to the east of the Complex area.
Ore reserves with high ratios of itabirite ore relative to hematite ore type. Itabirite ore has iron grade of 35-60%.
The Quadrilátero Ferrífero (QF) comprises an area of about 7000 km2 and hosts one of the largest concentrations of lateritic iron-ore deposits in the world. The QF is located in central Minas Gerais state, southeastern region of Brazil (Dorr, 1965). The QF has a quadrangular shape due to the dome and basin structures of the Minas Supergroup. Most of the iron ore in the QF are hosted in the oxidized, metamorphosed and heterogeneously deformed Banded Iron Formations (BIFs) of the Cauê Formation, the so-called itabirites. The BIFs are altered sedimentary deposits with laminated rocks formed by ........
Summary:
Mariana mining complex is located at Iron Quadrangle region, State of Minas Gerais in Brazil and comprises two mines (Brucutu and Morro Agudo), with two major beneficiation plants and one secondary plant.
Open pit mining is conducted via conventional truck and shovel mining method. Extracted ore has a high ratios of itabirite ore relative to hematite ore type. Itabirite ore type has iron grade of 35-60%. Part of the ore is concentrated to achieve shipping grade and part is shipped and blended in Asia with the high-grade ore from our Northern System.
Flow Sheet:
Summary:
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Production:
| Commodity | Units | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Iron Ore
|
kt
| ...... | ...... | ...... | ...... | 36,000 | 37,600 | 40,900 |
All production numbers are expressed as concentrate.
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Reserves at December 31, 2022:
| Category | Tonnage | Commodity | Grade |
|
Proven
|
425.7 Mt
|
Iron
|
42.4 %
|
|
Probable
|
888.3 Mt
|
Iron
|
50.1 %
|
|
Proven & Probable
|
1,314 Mt
|
Iron
|
47.6 %
|
|
Measured
|
198.2 Mt
|
Iron
|
46.5 %
|
|
Indicated
|
587.3 Mt
|
Iron
|
44.5 %
|
|
Measured & Indicated
|
785.6 Mt
|
Iron
|
45 %
|
|
Inferred
|
887.5 Mt
|
Iron
|
43.1 %
|
| Type | Material | Diameter | Length | Description |
Heavy Mobile Equipment as of June 30, 2021:
| HME Type | Model | Size | Quantity |
|
Truck (haul)
|
.......................
|
240 tons
|
.......................
|
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Corporate Filings & Presentations:
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